"An elephant lost one of its front legs and had trouble getting around. Scientists got to work and through trial and error built the elephant a bionic limb. Discover how science is helping injured animals"--

Tracy Sue Walker is an author of children's fiction and nonfiction including The Truth about Dragons. She earned her undergraduate degree from Agnes Scott College in anthropology. Tracy holds a masters' degrees in education as well as library and information science, but has also studied performance at the American Academy of Dramatic Arts in New York and writing at the Creative Circus in Atlanta. She is currently based in northern Georgia.